Door-hanger.



J. L. KAIL.

DOOR HANGER.

APPLICATION FILED MAY 6, 1912.

1,069,261 Patented Aug. 5, 1913.

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JACKSON L. KAIL, OF-CHICAGO, ILLINOIS, ASSIGNOR TO THE WINSLOW BROS. GOM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

DOOR-HANGER.

Specification of Letters Patent.

Patented Aug. 5,1913.

Application filed May 6, 1912. Serial No. 695,438.

To all whom 2'1? may concern.

Be it known that I, JACKSON L. KAIL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Door-Hangers, of which the following is a specification.

This invention relates to door hangers, and the object of the invention is to produce an easy running and practically noiseless door hanger of improved and novel construction.

The invention consists in the several novel features hereinafter set forth and claimed.

The invention is clearly illustrated in the drawing furnished herewith, in which Figure 1 is a side elevation, (looking from the well side of an elevator inclosure) of an elevator door and track, partly broken away, and showing a pair of hangers, embodying one form of the present invention, support ing the door from the track, Fig. 2 is a detail side elevation, partly broken out, of one of the hangers and fragments of the track and door, the View being in the direction opposite to that seen in Fig. l, and one of the track elements removed, Fig. 3 is a vertical cross section taken on the broken line 33 of Fig. 2, Fig. 4: is a view partly in plan and partly in horizontal section of the hanger, certain parts being broken away and certain parts detached from others.

Referring to the drawings, A is a fragment of an elevator door of ordinary construction, B a track which is secured to the elevator inclosure in the usual manner well known to those skilled in the art, and C is a pair of door hangers embodying the present invention, secured to the top of the door and traveling upon the tread of the track B. In the form illustrated in the drawing, said track comprises a vertical web I), having a horizontally extending flange 6 at its top which overhangs the hangers to prevent them from being lifted far enough for accidental displacement from the track, and 6 represents the main rail of the track which, as shown, is formed in its upper face with a longitudinal groove 6 preferably of curved or are shaped cross section.

The hanger C, has as a part thereof, a bracket 0, secured to the door A, and said bracket is connected with a block C around which are grouped a number of antifriction elements such as balls 0 The balls 0 are spaced apart and connected together by an endless chain C here shown as comprising links 0 pivotally connected together by rivets 0 Each link preferably comprises two symmetrical halves, each formed with a concave portion 0 between which is rotatively secured one of the balls 0 with the ball projecting considerably above and below the upper and lower edges of the link. The block C is of elongated formation and has a continuous track around the same, comprising upper and lower horizontal trackways 0 connected to each other at their ends. Preferably said horizontal trackways are in the form of grooves in the up per and lower edges of the block C The ends 0 of the block are rounded off to pre sent curved or are shaped surfaces which merge into the horizontal trackways by way of oblique trackways c. It is to be observed that an odd number of balls and links are employed; this makes it possible to avoid any considerable slack in the chain 0 and in fact with parts having the proportions illustrated in Fig. 2, the chain and ball device may fit tight on the trackway around the block C It is to be observed that when a door (supported by a pair of my present hangers) is moved in either direction, the balls roll upon the tread 79 of the supporting track and around the block G on the trackways c c 0', the weight of the door being transmitted from the hangers to the supporting track by those balls traveling between the block C and track 13.

The construction of hanger above described, provides one which is extremely easy running, noiseless and capable of slidably supporting comparatively heavy doors or other objects. By lengthening out the block C the number of balls, upon which said block rests, may be increased as is desired, and although balls have been chosen for the purpose of illustrating the invention, it is perfectly obvious that other forms of anti-friction rolling elements may be substituted for the balls shown. While the hanger has been shown as described in con nection with an elevator door, it is perfectly obvious that its use is not limited thereto, as there are many other places where a hanger of this kind may be employed.

I realize that various alterations and: modifications of this device are possible without departing from the spirit of my invention, and I do not therefore desire to limit myself to the exact form of construc tion shown and described.

I claim as new and desire to secure by Letters Patent:

In a door hanger, the combination with a track, of a horizontally elongated block, above and in the plane of the track, having parallel upper and lower edges provided with ball races and merging into rounded end faces of the block, a series of spaced uniform balls in constant contact with the edges of the block and connected by a Vertically flexible chain holding, each ball at its equatorial zone only, and means for suspending a door from the block.

In witness whereof, I have hereunto signed my name at Chicago, Cook county, Illinois, this 30th day of April 1912.

JACKSON L. KAIL.

Vitnesses ROYAL E. PAUL, LLEWELLYN lVLvrTnIAs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

